This story follows two well known airship pilots, although maybe not for good reasons.

Amber Skies, a stallion who hails from Stalliongrad fights to prove his worth and reclaim his lost honor
and Gray Tides, a son of Canterlot fights to defend his name from the past

The republic of Stalliongrad and the Monarchy of Canterlot wage bloody war with pilots such as these as mere tools.
but the tide of war changes people, maybe for the better

maybe for worse...